Fan-metal fiber gas burner

ABSTRACT

Provided is a fan metal fiber gas burner in which a metal fiber pad is installed and gas is supplied through a blow pressure to be burn. The burner is capable of uniformly distributing gas to the entire pad so that the flame can be uniformly exploded from all portions of the pad and the noise problem can be solved. The burner includes a detachable metal fiber pad installed to a combustion part of a burner head, a supply pipe connected to a central portion of a bottom of the burner head, a blower to supply oxygen necessary to burn gas through the supply pipe, and an idle-type dispersing blade provided below the metal fiber pad in the burner head and having a guide plate to uniformly dispersing gas in all directions while being pure-rotated according to a gas supplying pressure, and a guide plate having a curved surface.

TECHNICAL FIELD

The present invention relates to an industrial gas burner used in arestaurant or a communal feeding facility, and more particularly, to afan-metal fiber gas burner capable of widely and uniformly dispersingflame by a mesh-type metal fiber pad installed on a burner head and anidle-type dispersing blade installed at an inside of the burner head, sothat cooking time can be shortened and burning noise may be greatlyreduced when the gas is exhausted.

BACKGROUND ART

In general, as shown in FIG. 1, an industrial gas burner is classifiedinto a burner having two holes/two lines or three holes/three lines, adouble-pipe burner, and a jet burner according to an arrangement ofnozzles formed in the burner head. In such a gas burner, since gas isexhausted through a nozzle, the flame of a burning part is limited tothe surroundings of the nozzle and is not steady so that the flame isflickered.

Further, since the range of flame is limited, it is difficult touniformly heat an entire bottom of a cooking utensil so that a longertime than an expected tine is taken to roast or boil food ingredients.In addition, as an amount of burned gas is increased, the noise is moreincreased.

In addition, when food such as dish gravy is scorched and sticks to anozzle, a hole diameter of the nozzle is narrowed, or if aggravated, thenozzle is obstructed so that the combustion of gas is incomplete, so thethermal efficiency of gas energy is deteriorated.

As shown in FIG. 2, a gas burner using a metal fiber, which is capableof uniformly dispersing flame to shorten heating and cooking time and togreatly reduce noise in consideration of the above, has been known inthe art. According to the metal fiber gas burner, the metal fiber, whichserves as a combustion member, is installed at an upper end of a burnerhead.

When the metal fiber, which is made of a metallic material, is used forthe gas burner, differently from a nozzle type burner, the metal fiberhas a flat combustion structure so that the entire surface may be usedas a combustion surface. Thus, since the metal fiber gas burner hascombustion efficiency and heating power greater than those of the nozzletype gas burner, the use of the metal fiber gas burner has beenincreased.

Typical exemplary structures of a gas burner using a metal fiber as acombustion member according to the related art include are depicted inFIG. 2 and disclosed in Korean Patent Unexamined Publication No.2011-0106785 and Korean Utility Model Registration No. 328095,respectively.

The gas burner depicted in FIG. 2 among the related arts mentioned aboveincludes a metal fiber b flatly installed on an upper end of a burnerhead a. Gas and air suitably mixed with each other by a blower and a gassupply apparatus are supplied through a pipe member c to the burner heada, so that the gas is spouted out upwardly through a mesh of the metalfiber. When the gas is ignited over the metal fiber, as a conventionalwick, the metal fiber is operated as a combustion member so that the gasis burned.

However, in the above-described structure, since the gas pressure is notuniformly distributed to the entire surface of the metal fiber butconcentrated on the central portion of the metal fiber, the gas isintensively spouted out to the central portion of the metal fiber, sothat it is difficult to obtain uniform heating power. In addition, whenthe area of the combustion member is enlarged, such an unstablephenomenon may be more aggravated.

The gas burner disclosed in Korean Patent Unexamined Publication No.2011-0106785 among the related arts includes a metal fiber pad which isformed by overlapping several metallic mesh members having mutuallydifferent fiber diameters and net knots and substitutes for a nozzle.The metal fiber pad is installed on a top surface of a gas burner headso that relatively uniform flame is exploded through the entire meshmember. A distribution plate, which is attached to an end of a mixtureon a pipe line, which is placed under the pad while passing upwardlythrough a central portion of a bottom of the burner head, prevents thegas spouted out to the end of the mixture from being concentrated on thecentral portion of the pad, so that the gas is induced to be spouted outin all directions.

However, the number of metallic meshes constituting the pad of the gasburner is too many, so that the fabrication of the pad is difficult andthe weight of the pad is heavy. In addition, the juice and residue offood get in between meshes and stick to the meshes so that the meshholes are narrowed. Thus, as the gas burner is frequently used, theheating power of flame exploded through the pad is lowered and thecleaning of the pad becomes worse.

In addition, a previous scheme of controlling flame intensity bycontrolling the gas feeding rate has low gas diffusion so that the flameexploded from the pad is rough differently from the quiet and gorgeousflame caused while the gas is being burned at an infrared ray pad. Thus,the previous scheme is insufficient to uniformly heat food and isdebased in visual esthetic feeling although a gas burner is used. Inaddition, although the flame intensity is decreased, the noise stillremains as a research subject.

As shown in FIGS 3 and 4, the gas burner disclosed in Korean UtilityModel Registration No. 328095 among the related arts includes astainless pad which substitutes for a gridiron and is formed ofoverlapping several metal meshes having mutually different wirediameters and mesh shapes. The stainless pad is installed to acombustion part of the burner head. A resistance plate is installed to acentral portion of burner head under the pad, so that the inflow gasbumps against the resistance plate so that the gag is spread in alldirections.

According to the related art, even though the gas bumps against theresistance plate in the burner head so that the gag is spread in alldirections, the gas is clustered on one edge of the pad if the gaspressure is elevated. To the contrary, if the gas pressure is lowered,the gas is engulfed in the flame so that the gas tends to be clusteredon the central portion of the pad.

As described above, when the supplied gas is concentrated on a specificportion, it is difficult to expect the flam uniformly distributed to thewhole of the pad. If the flame is not uniform, the time taken to roastor boil food is longer than the time expected when taking intoconsideration the amount of used gas, so that the gas cost is moreincreased.

In addition, as a blow pressure is raised, although the gas bumpingagainst the resistance plate flare is irregularly clustered on an edgeof the pad so that strong flame is exploded from the edge, weak flame isexploded from the central portion. That is, it is also difficult toexpect uniform flame on the whole of the pad from the related arts.

DISCLOSURE Technical Problem

An object of the present invention is to provide a fan metal fiber gasburner, in which a metal fiber pad is installed and gas is suppliedthrough a blow pressure to be burn, capable of uniformly distributinggas to the entire pad so that the flame can be uniformly exploded fromall portions of the pad and the noise problem can be solved.

Technical Solution

To achieve the above object of the present invention, there is provideda fan-metal fiber gas burner which includes a detachable metal fiber padinstalled to a combustion part of a burner head, a supply pipe connectedto a central portion of a bottom of the burner head, and a blower tosupply oxygen necessary to burn gas through the supply pipe. Thefan-metal fiber gas burner includes an idle-type dispersing bladeprovided below the metal fiber pad in the burner head to uniformlydispersing gas in all directions while being pure-rotated according to agas supplying pressure, and a guide plate having a curved surface.

Advantageous Effects

According to the present invention, the idle-type dispersing blade,which is sensitively operated in response to a pressure of blowing airincluding gas regardless of the blow air, uniformly mixes the blowingair with the gas, and disperses softly and uniformly the mixture likespread of fog, so that the flame can be uniformly exploded on the entirepad.

In addition, according to the present invention, since the blowpressure, a path of which is varied due to the collision of the induceplate with the curved surface, is operated as rotation energy, theidle-type dispersing blade can be economically operated withoutconsuming any energy and any operation noise is not almost generated.

DESCRIPTION OF DRAWINGS

FIG. 1 is a view showing a state of a nozzle type gas burner accordingto the related art.

FIGS. 2 and 3 are schematic views showing a gas burner to which isapplied a metal fiber according to the related art.

FIG. 4 is a concept view showing the whole of a gas burner having ablower according to the related art.

FIG. 5 is an exploded perspective view showing a gas burner headaccording to the present invention.

FIG. 6 is an assembly view of a gas burner according to the presentinvention.

FIG. 7 is a detail view showing a central low end of a fan installed toa burner head according to the present invention.

BEST MODE

A fan-metal fiber gas burner according to the present invention includesa detachable metal fiber pad installed to a combustion part of a burnerhead, a supply pipe connected to a central portion of a bottom of theburner head, a blower to supply oxygen necessary to burn gas through thesupply pipe, and a gas supply apparatus. In addition, the fan-metalfiber gas burner includes an idle-type dispersing blade fixed below themetal fiber pad of the burner head and pure-rotated according to apressure of blow air including gas; and a curve-shaped inducing plateattached to a low end of a central shaft of the idle-type dispersingblade and to disperse uniformly and upwardly a rising gas pressure.

MODE FOR INVENTION

As shown in FIG. 1, a fan-metal fiber gas burner according to thepresent invention includes a burner head 1, a supply pipe 2 connected tothe central portion of a bottom of the burner head 1 to communicate withan inside of the burner head 1, a pad 3 mounted on a combustion part ofthe burner head 1, a blower 4 installed to a rear end of the supply pipe2, a gas supply apparatus 5 installed to the supply pipe 2 at the frontof the blower 4 and an idle-type dispersing blade 6 installed to aninside of the burner head 1.

The pad 3 is formed by sequentially stacking a metal mesh 9 and a metalfiber 10 and fixed between an upper fixing rim and a lower fixing rim 8.The pad 3 utilizes a tissue property of the metal fiber 10, so that thegas is uniformly spread out through the entire surface of the pad 3 andburned to quietly explode flame.

The blower 4, which is an air volume variable blower capable ofcontrolling an air flow rate, supplies an air together with gas throughthe supply pipe 2.

The gas supply apparatus 5 includes a gas hose connected to a gas barreland the supply pipe 2 and continuously supplies gas by using the gaspressure and the air flow rate.

The idle-type dispersing blade 6 is a non-electric adaptive blade whichis pure-rotated in sensitive response to the pressure of blowing airincluding the gas flowing into the burner head 1 through the supply pipe2 and is installed to an inside of the burner head 1 below the pad 3.

The pad 3 and the idle-type dispersing blade 6 are preferably spacedapart from each other by at least a distance in the range of 5 cm to 10cm. Since a space is formed between the pad 3 and the idle-typedispersing blade 6, the resistance against the rotor is reduced so thatthe rotation is smoothly performed and the mixing and diffusion of gasare improved.

The metal mesh 9 of the pad 3 is formed of stainless having excellentcorrosion and heat resistance and excellent durability. The metal mesh 9supports the metal fiber 10 to prevent the metal fiber 10 from droopingdue to strong flame.

The metal fiber 10 may have the same standard as the metal mesh 9 and asingle metal fiber 10 may be used. The metal mesh 9 and the metal fiber10 are sequentially stacked and after the upper fixing rim 8 is placedon the metal fiber 10 and the coupling holes of the metal fiber 10, themetal mesh 9, the upper and lower fixing rims 7 and 8 are aligned withthose of a flange 16, the metal fiber 10, the metal mesh 9, the upperand lower fixing rims 7 and 8 are coupled to the flange 16 with screws13.

A curve-shaped inducing plate 20 for dispersing the gas pressure risingupwardly is integrally installed to the low end of the central shaftaround which the idle-type dispersing blade 6 is fitted. The inducingplate 20 included a curve shaped inducing plate and a hemisphere shapedincluding plate.

The inducing plate 20 has a diameter W larger than an inner diameter Hof the supply pipe 2 placed below the inducing plate 20. After therising gas pressure which collides against the curved surface 22 isdispersed in all directions as the arrow of FIG. 6, the gas collidesagainst the idle-type dispersing blade so that rotation energy iscontinuously supplied to the idle-type dispersing blade. Thus, theidle-type dispersing blade 6 is continuously rotated. When a size of theinducing plate 20 is equal to or less than the inner diameter of thesupply pipe 2, the collision area is reduced so that the diffusionefficiency cannot be obtained.

Reference numeral ‘14’ denotes ignition member attaching piece extendingtoward one side of the upper fixing rim 7 and reference numeral ‘15’denotes a piezoelectric type ignition member.

According to the present invention, the gas g1 flowing through thesupply pipe 3 while a blow pressure is maintained allows the idle-typedispersing blade 6 to be driven and is burned while the gas g1 is beingdispersed upwardly through the pad 3.

As shown in FIGS. 6 and 7, the gas collides against one end of thecurved surface 22 of the guide plate 20 and at the same time, isdispersed in all directions. In the meantime, the gas g2 is softlystirred with the idle-type dispersing blade 6 which is rotated by thegas g1 to which the blow pressure is applied, so that the gas g2 isdispersed like spread of fog.

The dispersed gas g2 uniformly permeates into the whole of the metalfiber 10 by the upward blow pressure so that the gas g2 is smoothlyburn, so the flame f having uniform heating power explodes from allportions.

The curved surface 22, which is placed just on the upper end of thesupply pipe 2 in the structure of the gas burner, experts the greatesteffect on the primary task of dispersing the gas flowing into the supplypipe 2. In addition, the diameter W of the curved surface 22 is largerthan the inner diameter H of the supply pipe 2, so that the dispersionafter the rising gas collides against the curved surface can beimproved.

INDUSTRIAL APPLICABILITY

According to the present invention, the idle-type dispersing blade,which is sensitively operated in response to a pressure of blowing airincluding gas regardless of the blow air, uniformly mixes the blowingair with the gas, and disperses softly and uniformly the mixture likespread of fog, so that the flame can be uniformly exploded on the entirepad. In addition, since the blow pressure, a path of which is varied dueto the collision of the induce plate with the curved surface, isoperated as rotation energy, the idle-type dispersing blade can beeconomically operated without consuming any energy and any operationnoise is not almost generated, so that the present invention has verygreat industrial applicability.

1. A fan-metal fiber gas burner including a detachable metal fiber padinstalled to a combustion part of a burner head, a supply pipe connectedto a central portion of a bottom of the burner head, a blower to supplyoxygen necessary to burn gas through the supply pipe, and a gas supplyapparatus, the fan-metal fiber gas burner comprising: an idle-typedispersing blade fixed below the metal fiber pad of the burner head andidly rotated corresponding to a pressure of blowing air containing gas;and a curved guide plate attached to a low end of a central shaft of theidle-type dispersing blade to uniformly disperse a rising gas pressurein an upward direction.
 2. The fan-metal fiber gas burner of claim 1,wherein the idle-type dispersing blade has a non-electric structure thatdoes not require a motor or electric power.
 3. The fan-metal fiber gasburner of claim 1, wherein the curved guide plate has a diameter largerthan an inner diameter of the supply pipe.